package com.yuyou.weixin.util;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.yuyou.weixin.common.MyX509TrustManager;
import com.yuyou.weixin.common.WexinException;
import com.yuyou.weixin.service.impl.AnswerServiceImpl;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import java.io.*;
import java.net.ConnectException;
import java.net.URL;

/**
 * @Author: weiwenfeng
 * @Date: 2018/6/14
 */
public class WeixinUtil {

    private final static Logger log = LoggerFactory.getLogger(WeixinUtil.class);

    /**
     * 发起https请求并获取结果
     *
     * @param requestUrl    请求地址
     * @param requestMethod 请求方式（GET、POST）
     * @param outputStr     提交的数据
     * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
     */
    public static String httpRequest(String requestUrl, String requestMethod, String outputStr) {

        StringBuffer buffer = new StringBuffer();
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化
            TrustManager[] tm = {new MyX509TrustManager()};
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new java.security.SecureRandom());
            // 从上述SSLContext对象中得到SSLSocketFactory对象
            SSLSocketFactory ssf = sslContext.getSocketFactory();

            URL url = new URL(requestUrl);
            HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
            httpUrlConn.setSSLSocketFactory(ssf);

            httpUrlConn.setDoOutput(true);
            httpUrlConn.setDoInput(true);
            httpUrlConn.setUseCaches(false);
            // 设置请求方式（GET/POST）
            httpUrlConn.setRequestMethod(requestMethod);

            if ("GET".equalsIgnoreCase(requestMethod))
                httpUrlConn.connect();

            // 当有数据需要提交时
            if (null != outputStr) {
                OutputStream outputStream = httpUrlConn.getOutputStream();
                // 注意编码格式，防止中文乱码
                outputStream.write(outputStr.getBytes("UTF-8"));
                outputStream.close();
            }

            // 将返回的输入流转换成字符串
            InputStream inputStream = httpUrlConn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

            String str;
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            }
            bufferedReader.close();
            inputStreamReader.close();
            // 释放资源
            inputStream.close();
            httpUrlConn.disconnect();
        } catch (ConnectException ce) {
            throw new WexinException(ce);
        } catch (Exception e) {
            throw new WexinException(e);
        }
        return buffer.toString();
    }

    public static String getStringFromFile(String fileName) {
        String content;
        try {
            InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName);
            content = IOUtils.toString(inputStream, "utf-8");
            IOUtils.closeQuietly(inputStream);
        } catch (IOException e) {
            throw new WexinException("read " + fileName + " error:", e);
        } catch (Exception e) {
            throw new WexinException(e);
        }
        return content;
    }
}
